feat(core): 新增人设与标签模块及接口

- 新增 KeyboardCharacter/Tag 实体、Mapper、Service 及 VO
- 新增 CharacterController 与 TagController 提供 /list 接口
- 放开 /character/list、/tag/list 免登录访问
- 补充对应 XML 查询与 .gitignore 忽略 CLAUDE.md

src/main/java/com/yolo/keyborad/mapper/KeyboardCharacterMapper.java

@@ -0,0 +1,12 @@
+package com.yolo.keyborad.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.yolo.keyborad.model.entity.KeyboardCharacter;
+
+/*
+* @author: ziin
+* @date: 2025/12/3 14:18
+*/
+    
+public interface KeyboardCharacterMapper extends BaseMapper<KeyboardCharacter> {
+}

src/main/java/com/yolo/keyborad/mapper/KeyboardTagMapper.java

@@ -0,0 +1,12 @@
+package com.yolo.keyborad.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.yolo.keyborad.model.entity.KeyboardTag;
+
+/*
+* @author: ziin
+* @date: 2025/12/3 14:09
+*/
+    
+public interface KeyboardTagMapper extends BaseMapper<KeyboardTag> {
+}